This is yes
"She's expecting twins." "Pair of twins" is redundant, as twins don't come in sets of three.
no
The correct term is "set of twins." This refers to the two individuals born at the same time and is commonly used to describe multiple pairs. "Pair of twins" is less common and can be confusing, as "twins" already implies a pair.
Yes.
The collective noun is a pair of twins.
FOUR
Carolina and daniela
Chang and Eng Bunker
pigeon pair
No, the correct term is "twins." "Two twins" is redundant because twins refers to a pair of siblings born from the same pregnancy.
The thin transparent membrane that separates a pair of twins in utero is typically indicative of diamniotic, monochorionic twinning. This means that the twins each have their own amniotic sac but share a single chorion. Twins that have separate chorions and amniotic sacs are known as dichorionic, diamniotic twins.
Not in the real life but they are twins (triplets) in the film.